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9-3-9. CCD Output Level Adjustment
m
. Usually, this adjustment is not required except when the
output level of CCD unit is remarkably different from the
specified level.
. As a replacement CCD unit is precisely adjusted at the
factory, it is not necessary to perform this adjustment
when the CCD unit had been replaced with a new one.
Light:
3200 K, 2000 lux
(If the designated pattern box is used,
set the AUTO mode.)
Object:
Grayascale chart
Equipment:
Oscilloscope
Preparation:
. OUTPUT/DL/DCC+ switch/(side panel) → CAM/DCC+
. WHITE BAL switch: PRESET
. Chart frame = Underscanned monitor frame
. FILTER knob: 1 (3200 K)
. Loosen the four screws and open the right panel. Then
remove the two screws fixing the VA-190 board, and
open the VA-190 board with the connectors and the flat
cable connected.
Test point:
VIDEO OUT connector
Adjustment Procedure
1. Adjust the lens iris so that the white level "A" is as
follows:
for NTSC: A = 90 ± 10 IRE
for PAL: A = 630 ± 70 mV
2. Adjust the following controls alternately to minimize
the carrier leakage "B."
1RV1/PA-254 (B) board
1RV1/PA-256 (R) board
n
Set "PAGE 3: PRE.WHT" of Basic menu to 3200.
RV1
DSR-570WS/570WSP V1
Adjust alternately
RV1
PA-254 Board
PA-255 Board
PA-256 Board
9-3-10. Black Level Adjustment
Equipment:
Waveform monitor
Test point:
VIDEO OUT/Camera side
Adjustment Procedure
1. SERVICE menu "PAGE 17"
→ M. BLACK:
2. Close the lens iris.
3. Push down the "W/B" switch on the camera to "BLK"
side.
4. Perform adjustment by turning the MENU dial, then
store the data by pushing the MENU dial.
Specification: A = 10 ±1 IRE (for NTSC)
20 ±7 mV (for PAL)
9-11
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